The Mesa 3D Graphics Library

Mesa 9.2.3 Release Notes / (November 13, 2013)

Mesa 9.2.3 is a bug fix release which fixes bugs found since the 9.2.2 release.

Mesa 9.2 implements the OpenGL 3.1 API, but the version reported by
glGetString(GL_VERSION) or glGetIntegerv(GL_MAJOR_VERSION) /
glGetIntegerv(GL_MINOR_VERSION) depends on the particular driver being used.
Some drivers don't support all the features required in OpenGL 3.1. OpenGL
3.1 is only available if requested at context creation
because GL_ARB_compatibility is not supported.